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  • 90. Re: Eye strain from LED backlighting in MacBook Pro
    CONSUMER 1 Level 1 Level 1 (0 points)
    YOU ARE NOT CRAZY ! I HAVE THE SAME PROBLEM. HEADACHES FROM JUST USING MY MAC FOR 30 MINUTES. I NEVER NEEDED GLASSES MY WHOLE LIFE (I AM 27 YEARS OLD), 1 MONTH AFTER GETTING A NEW MACBOOK PRO, I HAD TO GET GLASSES BECAUSE THE COMPUTER SCREEN MESSED UP MY EYES.

    I TRIED TO CALL APPLE CUSTOMER CARE AND THEY PRETENDED LIKE I WAS CRAZY PRETENDING THEY HAD NEVER HEARD OF ANYONE HAVING THIS TYPE OF PROBLEM.

    ANY SOLUTION WOULD BE HELPFUL AS I HAVE PASSED THE 30 DAY RETURN POLICY TIME FRAME. ANY SUGGESTIONS??
  • 91. Re: Eye strain from LED backlighting in MacBook Pro
    FurryOne Level 1 Level 1 (5 points)
    dzmac17 wrote:
    Check this out. I think this guy may be on to something. I changed my 2009 LED Macbook Pro to the full brightness rather than a few nobs down, and I've noticed a significant difference! The strain almost stopped instantly. Worth a try.


    (junk science deleted)

    Did anyone here think the possible explanation might be as simple as their newer LED backlit computer having a higher resolution than their last one? I've gone from CCFL in my older computers to this new LED backlit one, and I keep my intensity at half with no eye strain. However, the resolution has gone from 1400 to 1900 in the same 17" space. THAT can cause eye strain faster than anything else! Maybe backing off the resolution might help?
  • 92. Re: Eye strain from LED backlighting in MacBook Pro
    leoozz Level 1 Level 1 (0 points)
    First of all, thank you for raising this important issue. Display technologies are still imperfect as far as eye fatigue is concerned. I can’t agree with you less that PWM is a harmful idea. What worries me is that running the led backlit display at full bright may have some other negative influences on the eyes. Strange, but not a single manufacture says the led technology is safer for your eyes, though it could be a very strong marketing idea. My guess is that there may be some reason for that besides PWM.
  • 93. Re: Eye strain from LED backlighting in MacBook Pro
    Andrew Larder Level 1 Level 1 (0 points)
    FurryOne wrote:
    dzmac17 wrote:
    Check this out. I think this guy may be on to something. I changed my 2009 LED Macbook Pro to the full brightness rather than a few nobs down, and I've noticed a significant difference! The strain almost stopped instantly. Worth a try.


    (junk science deleted)

    Did anyone here think the possible explanation might be as simple as their newer LED backlit computer having a higher resolution than their last one? I've gone from CCFL in my older computers to this new LED backlit one, and I keep my intensity at half with no eye strain. However, the resolution has gone from 1400 to 1900 in the same 17" space. THAT can cause eye strain faster than anything else! Maybe backing off the resolution might help?


    Possible causes (all of them seem to affect me to some extent):

    1/ Resolution
    2/ Contrast
    3/ 'Lighting' frequency
    4/ 'Lighting' spectrum (WLEDs are especially poor at this)
    5/ External reflections
    6/ Internal reflections (caused by extra glass panel)

    I have recently purchased a 27" iMac for work use, and it seems to be the worst decision I've ever made - I found the display unreadable after 10 mins.

    The colour spectrum that the backlight produces also seems to fool my eye-one calibration device, stopping it's white point calibration from working. Using manual calibration and visually setting the screen colour temperature to something far less blue (a 'reported' 5700K for my iMac) seems to help a bit in reducing my eye-strain, to the point that switching it back to 'standard' instantly makes my eyes hurt!
  • 94. Re: Eye strain from LED backlighting in MacBook Pro
    68K Level 1 Level 1 (0 points)
    Did you read this:

    LCD Display Discomfort
    http://www.cloanto.com/users/mcb/19960719lcd.html
  • 95. Re: Eye strain from LED backlighting in MacBook Pro
    cbcsvd Level 1 Level 1 (0 points)
    I have had exactly the same symptoms as the ones described by other users in this discussion (eye strain and headaches after 20-30 minutes and even the day after).

    Another possible cause of these symptoms could be the "dry eye syndrom". Some people are more likely to have dry eye. Computer users, who blink less often than normal (4 versus 15 blinks per minute on average), are often bothered by dry eye.

    Tears bathe and soothe the eye. They are important for eye health and clear vision. Dry eye occurs when tear quality is poor or not enough tears are available to protect the eye’s surface.

    http://www.vision1to1.com/EN/homepage.asp?BGColor=2&Category=9&Article=43
    http://www.medicinenet.com/dry_eyes/article.htm

    When tears do not adequately lubricate the eye, a person may experience:

    Pain
    Light sensitivity
    A gritty sensation
    A feeling of a foreign body or sand in the eye
    Itching
    Redness
    Blurring of vision

    The use of artificial teardrops is the primary treatment for dry eye. Artificial teardrops are available over the counter.

    I have been using artificial teardrops for a few weeks now, and I must say that the symptoms nearly disappeared.

    I think it's worth a try before thinking about returning your LED display to Apple !

    Any feedback about this suggestion is welcome.
  • 96. Re: Eye strain from LED backlighting in MacBook Pro
    cbcsvd Level 1 Level 1 (0 points)
    Another suggestion: Try and keep your screen turned up to FULL brightness to eliminate the need for the flicker-inducing pulse width modulation. The screen will be very bright, but there will be no more flickers. Then use "Shades" to adapt the brightness at a comfortable level. It should help.

    Message was edited by: cbcsvd
  • 97. Re: Eye strain from LED backlighting in MacBook Pro
    avi39b Level 1 Level 1 (0 points)
    I am a fourth year student from the University of British Columbia. All my electronics are high tech and very expensive. My last vaio cost 2400$ (with the best screen and stuff). Unfortunately, When I bought my macbook pro on april 2010 my eyes started getting dry very fast and started to hurt. I thought maybe it is because of the glossy screen, I purchased an antiglare screen last week and waiting for it. I hope it will be much better soon....L'll keep you guys updated.
  • 98. Re: Eye strain from LED backlighting in MacBook Pro
    Dgreens Level 1 Level 1 (0 points)
    Add me to the list. Bought a new 17" mac book pro glossy last week. Within 5 MINUTES my eyes started to hurt, I developed a headache and started feeling nausea. "Downgraded" to a 15" matte MPB and the same symptoms happened.

    To those saying there is no issue.. believe me.. some of us are indeed experiencing eye strain and nausea. Turning down the brightness doesnt help. Nor does turning the brightness all the way up. Calibrating the monitor does not help either.

    Trust me..this is a real issue for some people. I am seriously considering giving up and going back to PC which is a real shame as I am already in love with MAC.
  • 99. Re: Eye strain from LED backlighting in MacBook Pro
    aurelien349 Level 1 Level 1 (0 points)
    Good afternoon,

    I bought a Macbook air 13' last month and experienced after some time, as you did, a strong eye strain: at first, I didn't notice anything special, but after working one or two hours on this computer, my eyes were tired as if I had been working for a whole day in front of a screen.

    I tried reducing the brightness (using the shades application), enlarging the font, changing the color settings, but it didn't result in any improvement. The Apple Care support, though very helping, didn't find a solution to my problem.

    I returned the macbook (within the trial period) and went back to my old laptop. I must say I miss all the other advantages (design, weight, speed...), but my eyes are more important!

    I don't know if this eyestrain issue is related to the LED backlighting of the LCD screen, but it might be the case, since the LCD screen of my laptop has a neon backlighting (as all old LCD screens).

    I'd be interested in hearing about your feedback,

    Aurélien
  • 100. Re: Eye strain from LED backlighting in MacBook Pro
    Dgreens Level 1 Level 1 (0 points)
    I thinks its a combination between the led back-lighting and the way the fonts are rendered. At the very high contrast and you have a recepie for eye strain.

    In any event..I am going to the eye doctor tomorrow to rule out any eye troubles. Seriously doubt i have any since I can stare at a PC all day long. But you never know.
  • 101. Re: Eye strain from LED backlighting in MacBook Pro
    jsantana319 Level 1 Level 1 (0 points)
    I realized that the higher resolution 15 inch and 17 inch Macbook Pro are much worse when it comes to eye strain. I had a 1440x900 15 inch Macbook Pro and I didn't experience the same eye strain as I've been experiencing with the higher resolution 1680x1050 Antiglare. As a matter of fact it's so much easier for me to read at the regular 1440x900 or 1200x800 on the Macbook. I don't want to be increasing the font just to read and neither change the display resolution which would make everything look distorted. I can't return the laptop because I've been having it for 2 months so I have to sell it. I thought the Antiglare was gonna be easier on my eyes, but in reality is not so at least I learned the hard way.
  • 102. Re: Eye strain from LED backlighting in MacBook Pro
    okitat Level 1 Level 1 (0 points)
    I finally made the leap and bought a Macbook Pro three weeks ago, loved it until recently i noticed that i have been getting headaches and feeling nauseous after using the MBP for certain tasks. If I use my Bamboo tablet to draw on the MBP, after a few hours of usage I will feel extremely nauseous to the point of feeling like vomitting! However, if I am just surfing the web normally and even watching streaming video online for few hours straight, i do not feel nauseous.

    I've been reading this thread and it seems to suggest that my eyes might be sensitive to the LED screen, and was just wondering why I would feel nauseous doing one task and not the other. Anyone has any insight on this?

    I really like my MBP and would like to keep it. Any suggestions on whether changing the display settings might help to solve this problem? if so, what configurations should I set my monitor display too??

    Any help is much much much appreciated! Thanks so much!!! ^_^
  • 103. Re: Eye strain from LED backlighting in MacBook Pro
    Slunce Level 1 Level 1 (0 points)
    The same thing happened to me.

    I bought 17'' anti-glare MBP last year and enjoyed it only for couple of days before I started noticing my eyes getting sore. It simply became painful to look at the screen and the intervals I was able to use my MBP for very rapidly shortening every day.

    I obviously tried to turn the back lighting down however that did not fix the issue at all. Every few minutes I had a need to lower the setting further down which resulted in colors not being accurate anymore.

    I did not feel nauseous however I felt like I could not focus on the screen, on text in particular. Lowering the back lighting made reading the text ever more difficult as it's more tiring to cope with Apple's font rendering with lower than maximum contrast.

    I realized that the white is simply too white. Too bright. Reading text on white background was simply painful. Turning down the back lighting does not help. Whatever you do the white backgrounds are still sort of radiating something which causes my eyes tired and unable to focus.

    I can stare 10 hours a day without brakes to my old laptop screen, now 5 years old, slow, ugly, hot with fans full on - but as you I would rather do that then coping with the above. I want a MBP sooooo badly for whateveeeer cost. But I returned mine.

    Regards,
    Petr
  • 104. Re: Eye strain from LED backlighting in MacBook Pro
    Slunce Level 1 Level 1 (0 points)
    I've come to exactly same conclusion and had my eyes checked as well. My eyes are fine. They are also fine with starring at my old laptop for any amount of hours.

    But they get real pain from looking at any of current MBP screens for more than 15 minutes.

    Font rendering and/or smoothing or anti-aliasing if you wish certainly does not help but I think that the main reason is that the while is to bright. It's the LED, or at least that particular LED Apple's using.

    Back to my 5 years old laptop when I finally decided to make a switch :(((
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